물꼬관리 및 완효성 비료 시비가 포장단위 논에서의 영양물질 배출부하량에 미치는 영향
Effects of Controlled Drainage and Slow-release Fertilizer on Nutrient Pollutant Loads from Paddy Fields
2
조회
0
다운로드
9
인용
0
참고문헌
키워드
초록
The objective of this study was to investigate the effects of farming methods on mass balance from paddy rice. The experiment fields were establishedat Chunpo-myeon, Iksan-si in the Saemangeum watershed. Experiment was performed during the growing season to assess water and mass balances ofthe study field in 2013. The three different farming practices were applied: conventional (TR-A), drainage outlet heighten (TR-B) and slow releasefertilizer use (TR-C). Drainage amount from TR-B was reduced by 28.5 % compared to the TR-A, while the amount from TR-C was similar to that ofTR-A. Overall, nutrient concentration of paddy water were similar among the treatments except for T-P. Mean T-P concentration from TR-C was lowerthan that from TR-A (p-value<0.05). As the results of mass balance, TR-B appeared to reduce nutrient surface loss, substantially by 30.9 % and 40.8 %for T-N and T-P an compared to TR-A. TR-C treatment also demonstrated nutrient load reduction by 38.2 % and 40.1 % for T-N and T-P. The studyresults showed that water and fertilizer treatments are effective in surface load reduction respectively from paddy fields, and, long-term monitoring andevaluation is needed to confirm the reduction.
Abstract
The objective of this study was to investigate the effects of farming methods on mass balance from paddy rice. The experiment fields were establishedat Chunpo-myeon, Iksan-si in the Saemangeum watershed. Experiment was performed during the growing season to assess water and mass balances ofthe study field in 2013. The three different farming practices were applied: conventional (TR-A), drainage outlet heighten (TR-B) and slow releasefertilizer use (TR-C). Drainage amount from TR-B was reduced by 28.5 % compared to the TR-A, while the amount from TR-C was similar to that ofTR-A. Overall, nutrient concentration of paddy water were similar among the treatments except for T-P. Mean T-P concentration from TR-C was lowerthan that from TR-A (p-value<0.05). As the results of mass balance, TR-B appeared to reduce nutrient surface loss, substantially by 30.9 % and 40.8 %for T-N and T-P an compared to TR-A. TR-C treatment also demonstrated nutrient load reduction by 38.2 % and 40.1 % for T-N and T-P. The studyresults showed that water and fertilizer treatments are effective in surface load reduction respectively from paddy fields, and, long-term monitoring andevaluation is needed to confirm the reduction.
참고문헌 (26)
- Anbumozhi V, "Rice crop growth and yield as influenced by changes in ponding water depth, water regime and fertigation level", Agricultural Water Management, 37, pp.241~253 (1998)
- 장승우, "비종에 따른 논에서의 배출부하량 영향평가", 한국농공학회논문집, 53(6), pp.111~119 (2011), 한국농공학회
- Cho, J. Y., "Surface and subsurface losses of N and P from saltaffected rice paddy fields of Saemangeum reclaimed land in South Korea", Paddy Water Environment, 6, pp.211~219 (2008)
- 최중대, "점토질 롬 밭과 논의 비점오염원 부하량 평가", 한국농공학회논문집, 46(2), pp.107~114 (2004), 한국농공학회
- 최진규, "우분 퇴비를 시용한 논에서의 유출수 특성", 한국농공학회논문집, 54(3), pp.29~36 (2012), 한국농공학회[DOI]
- Evans, R. O, "Controlled versus conventional drainage effects on water quality", Journal of Irrigation and Drainage Engineering, 121(4), pp.271~276 (1995)
- Han, K. H, "Characteristics of Non-Point Sources Pollutant Loads at Paddy Plot Located at the Valley Watershed during Irrigation Periods", Journal of Korean National Committee on Irrigation and Drainage, 18(1), pp.94~102 (2011)
- "IBM SPSS Statistics ver", 21~
- 장남정, "새만금 유역 농업비점오염원 관리를 위한 우선지구 선정연구", 대한환경공학회지, 34(1), pp.23~31 (2012), 대한환경공학회[DOI]
- Jang, T. I, "Simulations of storm hydrographs in a mixed-landuse watershed using a modified TR-20 model", Agricultural Water Management, 97, pp.201~207 (2010)
- Jang, T. I, "Assessing nutrient losses of reclaimed wastewater irrigation in paddy fields for sustainable agriculture", Agriculture Water Management, 104, pp.235~243 (2012)
- 전지홍, "관개방법에 따른 논에서의 수문 및 수질특성에 미치는 영향", 생태와 환경, 38(1), pp.118~127 (2005), 한국하천호수학회
- Kang, M. S, "Applying SWAT for TMDL programs to a small watershed containing rice paddy fields", Agricultural Water Management, 79(1), pp.72~92 (2006)
- Kang, M. S, "Development of improved farming methods to reduce agricultural non-point source pollution", Magazine of the Korean Society of Agricultural Engineers, 52(4), pp.40~50 (2010)
- 김민경, "경지 정리된 광역 논에서 영양물질 수지와 배출 특성", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 38(3), pp.164~171 (2005), 한국토양비료학회
- 이정범, "하천관개지역 광역논에서의 영양물질의 물질수지", 한국농공학회논문집, 56(5), pp.11~19 (2014), 한국농공학회
- 이경보, "완효성비료 시용 논 토양중의 질소행동에 관한 연구", 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer), 38(3), pp.157~163 (2005), 한국토양비료학회
- Ministry of Land, Infrastructure and Transport (MOLIT), "Cadastral Statistics yearbook" (2013), Sejong Metropolitan Autonomous City
- Mishra, A, "Rainwater, soil and nutrient conservation in rainfed rice lands in Eastern India", Agriculture Water Management, 38(1), pp.45~57 (1998)
- Second Nonpoint Source Management Comprehensive Plan. 11-1480000-001222-01, "Relevant Ministerial Consortium", Ministry of Land, Infrastructure and Transport, ~ (2012)
- 윤춘경, "담수심과 오수처리수 관개가 벼재배에 미치는 영향", 한국농공학회논문집, 45(4), pp.55~65 (2003), 한국농공학회
- Yoon, C. G, "Mass balance analysis in Korean paddy rice culture", Paddy and Water Environment, 1(2), pp.99~106 (2003)
- Yoon, G. S, "Water Management and N, P Losses From Paddy Fields In Southern Korea", Journal of the American Water Resource Association, 42(5), pp.1205~1216 (2006)
- 송정헌, "영농방법에 따른 논에서의 배출부하량 모의", 한국환경농학회지, 31(4), pp.318~327 (2012), 한국환경농학회[DOI]
- 송정헌, "저수지 관개 광역 논의 영양물질 수지 분석", 한국농공학회논문집, 55(6), pp.167~175 (2013), 한국농공학회
- 송정헌, "미처리하수지구 논에서의 수질 및 토양 특성 분석", 한국농공학회논문집, 56(6), pp.19~29 (2014), 한국농공학회